Filling apparatus for liquids.



PATENTED JAN. 9, 1906. R. 0. WHITE.

FILLING APPARATUS FOR LIQUIDS;

APPLICATION FILED JAN.19, 1905.

3 SHEETS-8HEET l.

No. 809,764. 4 PATENTED JAN. 9, 1906.

I R. 0. WHITE.

FILLING APPARATUS FOR LIQUIDS.' APPLICATION FILED JAN.19,1905.

SSHEBTS-SHEET 2.

PATENTED JAN. 9, 1906. R. 0. WHITE. FILLING APPARATUS FOR LIQUIDS.

APPLICATION FILED JAN.19,1905.

3 SHEETS-SHEET 3.

l Qb UNITE STATES PATENT FFTGE.

ROYAL C. TVHITE, OF CHICAGO. ILLINOIS.

FILLING APPARATUS FOR LIQUIDS.

Specification of Letters Patent.

Patented Jan. 9, 1906.

To aZZ It'll/0m it may concern.-

Be it known that I, ROYAL 0. WHITE, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Filling Apparatus forLiquids, of which the following is a specification.

This invention relates to fillingmachines for filling packages withliquid under pressure.

The objects of the invention are to raise and lower the filling-tubethrough a pressurecylinder having a piston therein with a piston-rodconnected with the supply-head of the filling-tube; to control thedischarge of the liquid from the filling-tube into the pack age at theupper end of the filling-tube and have the control automatic with themovements of the filling-tube to open the controlling-valve for thefilling-tube at the time the discharge end of the filling-tube is at thelimit of its descent into the package, or approximately so, and to closethe valve for the filling-tube at the initial upward movement of thetube; to furnish a relief or vent for the filling-tube which will beclosed against the admission of air when the filling-tube is dischargingliquid and which will open to the air with the withdrawal of thefilling-tube, thereby insuring the discharge of the liquid that is inthe filling-tube below the controlling-valve; to furnish a sealing-headadapted to enter the bung or filling hole of the barrel and tightly sealsuch hole against the escape of pressure from the package or barrel andat the same time allow pressure to enter the package or barrel toequalize the pressure between the supply-tank and the liquid and the.package or barrel; to retain the sealing-head in its sealing positionduring the descent and ascent of the filling-tube to interlock the sealing-head and the filling-tube during the downward movement and until thesealing-head has reached its sealing position, after which the interlockcan be broken for the filling-tube to descend to its dischargingposition; to automatically release the sealing-head by the ascent of thefilling-tube as the filling-tube approaches the limit of its upwardmovement, and so that with the further upward movement of thefilling-tube the sealing-head will be raised from its sealing position;to enable the escape of the liquid into the sight-glass to be shut offwhen the liquid appears in the sight-glass and not having the closing ofthe escape-passage interfere with the raising of the fillingtube out ofthe package, and to improve generally the construction and arrangementof the several elements which enter into the filling apparatus as awhole.

The invention consists in the features of construction and combinationsof parts hereinafter described and claimed.

In the drawings, Figure 1 is a front elevation showing a singleappliance; but it is to be understood that in practice two or three, or.

more, of the fillingappliances can be applied to and used with a singleliquid-containing tank; Fig. 2, a sectional elevation showing thepressure-cylinder, the piston therein, the piston-rod, and the upperportion of the sliding rods and the head of the filling-tube Fig. 3, anelevation, partly in section, showing the main frame, the sliding rods,the fillinghead, the filling-tube, and the sealing-head; Fig. 4, adetail, partly in section, showing the sealing-head and the sight-glassFig. 5, a detail in elevation, showing the upper end of the filling-tubeand the cross-head and pawls for locking the sealing-head; Fig. 6, aside elevation of the parts shown in Fig. 5 with the sliding bars andframework omitted Fig. 7 a plan view of the cross-head and lockingpawlsfor the sealing-head Fig. 8, a detail in section of the vent-valve atthe upper end of the filling-tube for discharging the liquid with theascent of the filling-tube; Fig. 9, a detail showing the hingeconnection for the frame with the cross-beam for permitting the fillingapparatus to swing out of line with the filling or bung hole of thepackage; and Fig. 10, a detail, partly in section, showing the hinge forthe frame, the lower end of the pressure-cylinder, and the upper end ofthe frame.

The appliance or apparatus is constructed with a cylinder 1, closed atits upper end by a cap 2 and at its lower end by aplug 3 on a plate 4,which is supported on the main frame, so that the cylinder 1 will beheld in place. The cylinder 1 has therein a piston 55, which, as shown,is formed of an upper cupleather 6, a lower cup-leather 7, and a plate 8within the wall of the upper cup-leather and a plate 9 within the wallof the lower cupleather. The upper end of a piston-rod 10 passes throughthe cup-leathers and plates of the piston, and the piston is attached tothe end of the piston-rod by an upper jam or lock nut 11 and a lower jamor look nut 12, so that with the reciprocation of the piston in thecylinder 1 the piston-rod 10 will be advanced and receded to raise andlower the filling-- tube. The piston-rod passes through a hole thereforin the plug 3 and plate 4 and through a boss or wall 13, depending fromthe plate 4, and have therein a chamber 14 for the reception of apacking compressed by a gland 15, held in position and advanced tocompress the packing by a cap 16, threaded onto the exterior of the wall13, and through which cap and the packing and gland the piston-rodpasses, the packing in the chamber 14 making a tight oint around thepiston-rod against leakage. The lower end of the piston-rod isscrew-threaded and has thereon a jam or look nut 17, which abuts againstthe end face of a wall 18, having a threaded hole into which the end ofthe piston-rod is entered.

A cross-bar 19 has depending therefrom a plate 20, and extending outwardand down, ward from the cross-bar on one side is a plate 21, on theupper or horizontal portion of which is the wall 18, into which the endof the piston-rod is threaded, so that the crossbar and the plates 20and 21 move with the piston-rod. A space 22 is formed between the plates20 and 21 and the plates 20 and 21 at their lower end are united withthe head-plate 23 of a cylinder or shell, the wall 24 of which at itslower end on the interior is screwthreaded to receive the threaded endof a filling-tube 25, leaving a chamber 26 within'thewall 24 between thehead 23 and the end of the filling-tube. A passage 27 in a nozzle 28opens into the chamber 26 for supplying liquid to the chamber to flowdown through the filling-tube. The upper end of the filling-tube hasformed thereon a seating-face 29, which coac'ts with the acting face 30of a valve 31, attached to a stem 32, which stem extends up through across-wall 33, on the upper side of which is a chamber 34 in the head 23and a wall 35, which wall has an exterior screw-thread. The wall of acap-plate 36 threads onto the exterior of the wall 35, and within thechamber of the cap 36 is a gland 37, extending'into the chamber 34 tocompress a packing 38 around the stem 32. The upper end of a spring 39bears against the cross-wall 33, with the lower end of the springbearing against the upper face of the valve 31, so that the valve isheld normally seated. The stem 32 of the valve passes through the wall33 and cap 36 and above the cap is screw-threaded to receive a stopnut40, furnishing a support for the lifting means for the valve. The stem32 passes through a hole 41 in a plate 42, extending downwardly fromwhich on each side are arms 43, each arm terminating in a foot 44, eachfoot having a slot or opening 45, into which enter the rods or barscarrying the sealing-head. The arms 43 are adjusted to properly positionthe feet to act and raise the valve 31 from its seat as the fillingtubereaches the limit of its descent, and this adjustment is attained byadvancing or receding the stop-nut 40, and when adjusted the arms areheld in their adjusted position by a jam-nut 46 and a lock-nut 47,threaded onto the end of the stem 32 in the arrangement shown.

Sliding bars 48 are located on opposite sides of the cylinder 1, eachbar passing through a slot 49 therefor in the cross-plate or head 4, sothat the bars are free to be raised and lowered, and, as shown, theupper end of each bar 48 has therein a stop-pin 48, which strikes theupper face of the cross-head or plate 4 and limits the descent of thebar. A cross head 50, formed of two companion plates, connects the twosliding bars 48, each companion plate having an ear 51, with a channel52 between theears to receive the bar 48, and through which ears and thebar 48 a pin or bolt 53 passes, securing the crosshead to the slidingbars in the arrangement shown. cross-head have a circular center 54,with a central hole 55, into which the wall or socket 18 can pass, sothat the cross-bar 19 can be made to abut against the cross-head 50 andfurnish the means for raising the sliding bars 48 to their normalposition. The piston-rod 10 extends up and is free to slide through thehole 55 of the cross-head 50, so that the filling-tube can be raised andlowered in operation.

The two companion plates of the crosshead 50 are held together bycrossbolts 56, and these bolts furnish the pivot each for a dog or pawl57, the acting end 58 of which projects above the top face of thecross-head 50 and has an outward throw under a springtension. Each dogor pawl 57 on its outer edge face has a lug 59, which when the crossplate or bar 19 is in engagement or abuts against the cross-head 5Ostrikes a pin or proj ection 60, by which the acting end 58 of the dogor pawl is thrown out of its engaging po-.

sition with its cooperating rack. The pawls are held under springtension in the form shown by a flat plate-spring 61, attached at The twocompanion plates of the its center by a screw 62 to the upper face ofone plate of the cross-head, so that each free end of the spring bearsagainst the upper edge face of each pawl and acts to throw the actingend of the dog or pawl downward and outward and into engagement with itsrack. A pair of ears 63 project outward from one of the plates of thecross-head 50, and through these ears a pin or ivot 64 passes on whichis mounted the ent of a lever or handle 65,

rojecting down from which is a pendant 66, having a catch 67, whichengages with a catch 68, outwardly extending from the cross bar or plate19, so that when the catches 67 and 68 are engaged the cross-head 50will be carried down with the descent of the fillingtube, carrying withit the sliding bars 48, and such downward movement of the cross-head 50and sliding bars 48 will continue so long as the catches 67 and 68 areengaged, but with the disengagement of the catches 67 and 68 by theoperator of the apparatus the crosshead 50 and the sliding bars 48remain stationary, leaving the filling-tube free to be car ried down bythe further descent of the piston-rod.

The sliding bars 48 are located and operate between side posts 69, oneon each side and forming the side posts of the frame. Each side post hason its inner face a rack 70, with the teeth of which the acting ends 58of the pawls 57 engage, the en agement being one which allows thesliding bars 48 to freely descend, but prevents the ascent of the barsun til the acting ends of the pawls are released from the racks. Eachside post or bar 69 has an upper end 71, to which is attached by bolts72 the cross head or plate 4, carrying the pressure-cylinder 1 andthrough which the sliding bars 48 pass. Each side post or bar 69 at itslower end has aflange 73, through which bolts 74 pass, securing across-plate 75 to the side posts, and this plate 75 in the arrangementshown has two guides or lugs 76, through which the sliding bars pass,giving the bars a straightline movement in connec tion with the slots inthe cross head or plate 4, thereby insuring a direct horizontalpositioning of the sealing-head, and between the lugs 76 in thearrangement shown is a hole 77 for the admission of the upper portion ofthe sealing-head.

The lower end of each sliding bar 48 terminates in a pin 78, threaded toreceive a nut 79, and these pins have entered thereonto a cross-plate80, which is held in place by the nuts. The cross-plate 80 has extendingup from its top face a wall 81, in which and the plate is a hole 82 forthe passage of the fillingtube, and the upper end of the wall 81 hastherein a chamber 83 to receive a packing 8 1, compressed by a gland 85,held in plaec by a cap-plate 86, having a depending side wall whichthreads onto the exterior of the wall 81, so that a tight joint isformed around the fil1ing-tube against the escape of pressure andliquid. Ahead or wall 87 depends from the plate 80, and this wall hasformed therein, adjacent to the filling-tube, a chamber 88, into whichpressure can enter. A nozzle or wall 89 is threaded or otherwisedetachably secured in the lower end of the head or wall 87 with aninterior diameter, so as to leave an open space 88 between its innerface and the outer face of the filling-tube. The exterior face of theentered nozzle or wall 89 at the lower end has a head or flange 90, andbetween this bead or flange and the end face of the head or wall 87 andaround the exterior of the nozzle or wall 89 is a gasket 91, of rubberor other suitable sealing material, which will act and seal the bung orfilling hole of the barrel or package when the sealing-head is forceddown for the packing to enter the bung or filling hole. A passage 92 inthe head or wall 87 and a nozzle or nipple 93 leads laterally from thechamber 88, and to the nipple 93 is attached, by a suitable coupling, ahose or flexible tube 9 1, the other end of which is attached, by acoupling or otherwise, to a nipple 95, secured in an ear extending outthe plate 75, furnishing a flexible connection permitting the rising andfalling movement of the sealinghead. A valve 96 has its wall at one endthreaded onto the nipple 95, and the other end of the wall has enteredthereinto a nipple 97 on a plate 98, connected to a plate 99 by sidewalls or plates 100 and forming a closure in which is located asight-tube 101, and the plate 99 has a nipple 102, onto which is enteredthe lower end of the shell or casing of a valve 103, having a vent ordischarge spout 104, through which when the plug of the valve isproperly turned pressure and liquid can discharge or vent. The other endof the casing or shell of the valve 108 has a nipple 105, to which isattached, by a suitable coupling or other wise, the end of a tube orhose 106, the other end of which is attached to the filling-tank, so asto have communication with the upper portion of the tank containingpressure. The pressure from the interior of the tank when the plugs ofthe valves 103 and 96 are properly turned is free to flow through thehose or tube 106, valve 103, sightglass 101, valve 96, hose or tube 9 1,and passage 92 into the chamber 88 and escape through the space 88 intothe package. The lic uid as the barrel or package becomes filled forcesthe pressure in the barrel back through the space 88 into the chamber 88to escape through the passage 92 and be returned to the tank by the sameroute in whichit flowed into the package or barrel, and with thecompletion of the filling of the package or barrel with the liquid theliquid flows into the chamber 88 through the space 88 and escapesthrough the passage 92 and flows through the hose or tube 94 and thevalve 96, making its appearance in the sight glass or tube 101, and whenthe presence of the liquid is observed in the sight glass or tube theplug of the valve 96 is closed, shutting off the .flow from the packageor barrel.

A tube 107 leads from the upper end of the cylinder 1 and is connectedby a coupling 108 with a tube 109, the lower end of which is connectedby a coupling 110 with the shell or casing of a valve 1 1 1, having aplug provided with a handle or arm 112, to the outer end of which isconnected the upper end of a rod 118, which extends down and is attachedto a lever pivotally mounted on one of the posts 69, so as to be withinreach of the operator. A tube or pipe 114 is attached to the shell orcasing of the valve 11 1 and is connected by a coupling 115 with a pipeor tube 116, leading into the cylinder 1 at its lower end. The

ICC

valve 111 is connected by a tube or hose with a pressuresupply pipe, soas to receive pressure thereinto from the pipe, and the pres sure isadmitted to either the upper end of the cylinder 1 to force the piston 5down or to the lower end of the cylinder 1 to force the piston 5upwardly. The admission of pressure to the upper and lower ends ofthe'cylinder 1 is controlled by the operator, the operator adjusting thevalve 111 for the pressure to flow upwardly through the pipe 109 andpipe 107 into the upper end of the cylinder and to flow downwardlythrough the pipe 114 and the pipe 116 into the lower end of thecylinder, accordingly as it is desired to move the piston 5 downwardlyor upwardly.

The liquid flowing through the filling-tube into the package or barrelwhen the pack- .age or barrel is filled will remain in the fillingtubeand is to be discharged therefrom into the package or barrel as thefilling-tube is withdrawn, the amount of liquid in the fillingtube andin the hose or tube 94 being approximately sufficient to fill the barreland compensate for the space occupied by the fillingtube in the barrel.The withdrawal of the filling-tube from the barrel allows the liquidtherein to discharge into the package or barrel, and such dischargeshould be free and rapid,owing to the quick withdrawal of thefilling-tube. This free and rapid discharge of the liquid from thefilling-tube is attained by providing a vent at the upper end of thefilling-tube. The vent shown is formed of a shell or casing 117,attached to a nipple 118, entered into a coupling 119, attached to anipple 120, which enters the wall of the fillingtube and hascommunication with the interior of the filling-tube. A flange or cap121, having lateral holes 122, carries a plug 123, which threads intothe end of the shell or casing 117, and through the plug and cap is ahole 124, in which is a stem 125, having a head 126 on its outer end anda valve-disk or plate 127 on its inner end, which is free to rise andfall in the chamber of the shell or casing 123 and when down allow airto flow through the passages 122 and passage 124 into the chamber of theshell or casing 117 and escape through a port 128 to flow into thefillingtube above the liquid and assist the discharge of the liquid fromthe filling-tube as the filling-tube ascends. The. pressure as itinitially enters the filling-tube with the equalization of the packageacts against the under face of the valve disk or plate 127, causing suchdisk or plate to rise and close the passage 124 against the escape ofthe admitted pressure and shutting off the admission of external airthrough the vent, thus insuring the flow of the liquid into the packagewithout having external air mixed therewith. This vent at the upper endof the filling-tube insures a perfect operation in discharging theliquid into the package when the filling-tube is withdrawn and greatlyfacilitates the filling of the package with the liquid, as it preventsany appreciable amount of foaming during the filling operation and thewithdrawal of the filling-tube from the barrel or package.

A tank 129 of the required length to accommodate the number of fillingappliances desired is provided for'containing liquid and pressure, andliquid is supplied to the tank through a nipple 130, having coupled orotherwise attached thereto one end of a sup ply-hose 131, leading fromthe source of supply i'or the liquid. A nipple 132, having a valve 133,has attached thereto a hose 134, leading from the valve to a coupling135, attached to the nozzle 28 for supplying liquid from the tank to thehead of each filling-tube.

At the upper end of the posts 69 is a crossplate 136, extending out fromwhich is an car 137, through which passes the pivot-pin 138, which pinalso passes through ears 139, between which the ear 137 is located. Theears 139 each project from a plate 140, attached by bolts or otherwiseto a beam 141, supported in end standards 142, which standards alsosupport the liquid-tank. The'posts 69 and the parts carried thereby,including the pressure-cylinder, the filling-tube, and the sealing-head,are supported by the ears 137 139 and pivot 138, so that the parts canswing fore and aft, and inasmuch as the pivot 138 is of? center inrelation to the weight of the frame and parts it will be seen that withthe filling-tube and sealing-head raised the parts will swing rearward,carrying the filling-tube and sealing-head out of line with the I hungor filling hole of the package or barrel, so that the operator caninsert and drive the bung. The frame and parts supported thereby willswing rearward naturally and will so remain until the operator swingsthe frame forward and in position to bring the fillingtube andsealing-head in line with the bung or'filling hole of the package orbarrel.

The operation is as follows: A barrel or package is placed in positionwith the sealing-head and filling-tube raised and in the normal positionshown in Fig. 1, in which the dogs or pawls are out of engagement withthe racks 70. The operator through the rod 1 13 turns the plug of thevalve 111 to admit pressure to the upper end of the cylinder 1 for thepressure to act and force the piston 5 down wardly, and such downwardmovement of the piston through the piston-rod 10 moves the cross-bar 19and the filling-tube downward, causing the catch 68 to engage the catch67 and interlock the cross-head with the cross plate or bar 19, so thatthe crosshead will move with the cross bar or plate, and with theinitial downward movement of the cross-bar 19 the stops are withdrawnfrom engagement with the lugs 59, allowing the spring 61 to act andthrow the, acting ends 58 of the pawls or dogs 57 into engagement withthe racks as the crosshead 50 descends. The interlock between thecrosshead 50 and the bar 19 is maintained until the cross-head hasdescended the required distance to carry the sliding bars 48 down untilthe sealing-head has descended to a point where the packing enters thefilling or bung hole of the package or barrel and seals the same, andwith the engagement of the sealing-head with the package-or barrelfurther descent of the sealing-head, the sliding bars 48, and thecross-head is stopped by the re sistance of the barrel or packageagainst the cross plate of the sealing-head. At the completion of thesealing the catches 67 and 68 are disengaged by the operator raising thearm or lever 65, which leaves the fillingtube free for further descentand holds the sealing-head in its fixed position and against ascent bythe engagement of the dogs or pawls with the racks, so that on thewithdrawal of the filling-tube the sealing-head will be held in itssealing position until the upward movement of the crossbar 19 causes thestops 60 to engage the lugs 59 and throw the acting ends 58 of the pawls57 out of engagement with the rack, leaving the sealing-head free tomove upward simultaneously with the upward movement of the filling-tubeto clear the barrel or package. The disengagement of the stops 67 and 68by the operator allows the pressure which has been admitted to the upperend of the cylinder to act on the piston and force the piston 5downwardly, carrying with it the piston-rod and entering the fillingtubeinto the package or barrel. The valve 31 remains closed during thedescent of the filling-tube and until the feet 14 of the arms 43 abutagainst the lugs 76, causing the arms 43 to raise the stem 32, and withit the valve 31, opening the end of the filling-tube to the admission ofliquid from the chamber 26 thereinto to flow down into the package, andsuch flow of the liquid into the package is continued until the liquidmakes its appearance in the sight glass or tube 101, when the plug ofthe valve 96 is closed, shutting off the flow of liquid into the sightglass or tube. At this time the operator through the rod 113 and arm 112reverses the position of the plug of the valve 111, so that pressurewill flow through the tubes 114 and 116 into the lower end of thecylinder 1 to act on the piston 5 and raise the piston, and with it thepistonrod 10 and the filling-tube, and with the admission of pressure tothe lower end of the cylinder pressure vents from the upper end of thecylinder through the valve 111, as with the admission of pressure to theupper end of the cylinder pressure is vented through the valve 111 fromthe lower end of the cylinder. The upward movement of the piston 5,carrying with it the piston-rod 10 and the fillingtube 25, Withdraws thefilling-tube from the package or barrel, and with the initial upwardmovement of the filling-tube the feet 44 of the arms 43 are withdrawnfrom engagement with the guides or lugs 76, allowing the spring 39 toact and close the valve 31, shutting oh the flow of liquid from thechamber 26 into the filling-tube. The upward movement of thefilling-tube discharges the liquid in the filling-tube into the barrel,such'discharge of the liquid being rendered free and rapid by means ofthe vent, as already described. The upward movement of the filling-tubewith the cross-bar 19 continues independent of the cross-head 50,leaving the seal intact until the stops 60 on the cross-bar 19 engagethe lugs 59, releasing the dogs or pawls from the racks, after which thefurther upward movement of the filling-tube carries with it thesealing-head through the upward movement of the sliding bars 18 from thecrosshead 50, engaged by the cross-bar 19, and such upward movement ofthe filling-tube and sealing-head continues until the parts reach theirnormal position, (shown in Fig. 1,) when the bung can be inserted in thebarrel or package and the barrel or package rolled oil or removed fromits filling position and a new barrel or package placed in position tobe filled, and such new package or barrel can be filled, as hereinbeioredescribed. The operations can be continued until the required number ofpackages or barrels have been filled. It is to be understood that whenthe liquid appears in the sight-glass, showing that the package isfilled, the valve 96 is to be closed, and this valve remains closedduring the period of withdrawal of the filling-tube, the liquid in thefillingtube discharging by reason of the vent at the upper end thereof,and when a new package has been placed in positionfor filling and theseal made the valve 96 is opened for equalizing the pressure between thepackage and the filling-tank, the small amount of liquid inthesight-glass being blown back into the package, so that the sight-glasswill be clear of any liquid. It is necessary that the fillingtube andsealing-head be swung out of operative position in order to enable thebung or closing-plug to be inserted into the barrel or package, and suchswinging of the parts out of position is attained through the rear hingeor pivot of the supporting-frame to the crossbeam of the main frame.

What I claim as new, and desire to secure by Letters Patent, is

1. In a filling apparatus for liquids, the combination of a fluidpressure cylinder closed at the top and bottom, a piston in saidcylinder, at piston-rod downwardly extending from the piston and passingthrough the closed lower end of the cylinder, a cross-bar attached tothe lower end of the pistonrod, a supply-head for liquid connected withthe cross-bar, a filling-tube entered at its upper end into theliquid-supply head, avvalve Within the liquid-supply head controllingthe admission of liquid to the filling-tube, a stem for the valve, andmeans carried by the stem for raising the stem and valve at the l mit ofthe descent of the filling-tube, substantially as described.

2. In a filling apparatus for liquids, the combination of a fluidpressure cylinder closed at the top and bottom, a piston in saidcylinder, a piston-rod downwardly extending from the piston and passingthrough the closed lower end of the cylinder, a cross-bar attached tothe lower end of the piston-rod, a supply-head for liquid connected withthe cross-bar, a filling-tube entered at its upper end into theliquid-supply head, a valve within the liquid-supply head controllingthe admission of liquid to the fillin tube, a stem for the valve, a yokemountec on the stem and enga ing a fixed stop at the limit of thedescent oi the filling-tube for raising the stem and valve,substantially as described.

3. In a filling apparatus for liquids, the combination of a fluidpressure cylinder closed at the top and bottom, a piston on saidcylinder, a piston-rod downwardly extending from the piston and passingthrough the closed lower end of the cylinder, a crossbar attached to thelower end of the pistonrod, a supply-head for liquid connected with thecross-bar, a filling-tube entered at its upper end into theliquid-supply head, a valve within the liquid-supply head controllingthe admission of liquid to the filling-tube, a stem for the valve, ayoke mounted on the stem, a rest for the yoke on the stem, and a lockholding the yoke against upward movement for the yoke to engage a fixedstop and raise the stem and valve at the limit of the descent of thefilling-tube, substantially as described.

4. In a filling apparatus for liquids, the combination of a fluidpressure cylinder closed at the top and bottom, a piston in saidcylinder, a piston-rod downwardly extending from the piston and passingthrough the closed lower end of the cylinder, a crossbar attached to thelower end of the pistonrod, a supply-head for liquid connected with thecross-bar, a fillin -tube having its upper end entered into theiquid-supply head and provided with a seating-face, a valve within theliquid-supply head seating against the face of the filling-tube andcontrolling the ad-' mission of liquid to the filling-tube, a stem forthe valve, a spring encircling the stem and holding the valve normallyseated, a yoke carried by the stem and adapted to engage a fixed stopand raise the valve and stem against the resistance of the spring as thefilling-tube reaches the limit of its descending movement, substantiallyas described.

5. In a filling apparatus for liquids, the combination of a filling-headhaving a chamher to receive liquid, a nozzle opening into the chamber ofthe filling-head for supplying liquid to the chamber, a filling-tubehaving its upper end entered into the supply-head and in communicationwith the chamber of the supply-head, a valve seating around the end ofthe filling-tube in the supply-head and controlling communicationbetween the chamber of the supply-head and the fillingtube, a springholding the valve normally seated, a stern for the valve, and a yokecarried by the stem and operating to lift the stern and valve at thelimit of descent of the fillingtube, substantially as described.

6. In a filling apparatus for liquids, the combination of a cylinderclosed at the top and bottom, a piston in said cylinder, a piston-roddownwardly extending from the pis ton and passing through the closedlower end of the cylinder, a cross-bar attached to the lower end of thepiston-rod, a supply-head for liquid and a filling-tube carried by thecross-bar, sliding bars one on each side of the cylinder, a cross-headconnecting the sliding bars, a sealing-head carried by the sliding barsand through which the filling tube passes, and a breakable connectionbetween the cross-bar carrying the supply-head and filling-tube and thecross-head of the sliding bars for operating the sealing-head with theinitial movement of the filling-tube, substantially as described.

7. In a filling apparatus for liquids, the combination of a cylinderclosed at the top and bottom, a piston in said cylinder, a piston-roddownwardly extending from the piston and passing through the closedlower end of the cylinder, a cross-bar attached to the lower, end of thepiston-rod, a supply-head for liquid and a filling-tube carried by thecross-bar, sliding bars one on each side of the cylinder, a cross-headconnecting the sliding bars, a sealing-head carried by the sliding barsand through which the filling tube passes, a catch on the cross-bar, anarm pivotally mounted on the cross-head andacatch carried by the arm formaking and breaking the connection between the cross-bar and thecross-head, substantially as described.

8. In a filling. apparatus for liquids, the combination of a cylinderclosed at the top and bottom, a piston in said cylinder, a piston-roddownwardly extending from the piston and passing through the closedlower end of the cylinder, a cross-bar attached to the lower end of thepiston-rod, a supply-head for liquid and a filling-tube carried by thecross-bar, sliding bars one on each side of the cylinder, a cross-headconnecting the sliding bars, a sealing-head carried by the sliding barsand through which the filling-tube passes, a breakable connectionbetween the cross-bar and cross-head for operating the s ealinghead withthe initial downward movement of the filling-tube, pawls carried by thecross-head, and fixed racks with which the pawls engage for holding thesealing-head against upward movement, substantially as described.

9. In a filling apparatus for liquids, the combination of a cylinderclosed at the top and bottom, a piston in said cylinder, a piston-roddownwardly extending from the piston and passing through the closedlower end of the cylinder, a cross-bar attached to the lower end of thepiston-rod, a supply-head for liquid and a filling-tube carried by thecross-bar, sliding bars one 011 each side of the cylinder, a cross-headconnecting the sliding bars, a sealing-head carried by the sliding barsand through which the filling tube passes, a breakable connectionbetween the cross-bar and cross-head for operating the sealing-head withthe initial downward movement of the filling-tube, pawls carried by thecross-head, a spring holding the pawls in engagement, and fixed rackswith which the pawls engage for holding the sealing-head against upwardmovement, substantially as described.

10. In a filling apparatus for liquids, the combination of a cross-barcarrying a supplyhead and a filling-tube, slidable bars carrying asealing-head through which the filling-tube passes, a cross-head for thesliding bars and a detachable connection between the cross-bar andcross-head for operating the sealing-head with the initial downwardmovement of the filling-tube, substantially as described.

11. In a filling apparatus for liquids, the combination of a cross-barcarrying a supply head and a filling-tube, slidable bars carrying asealing-head through which the fillingtube passes, a cross-head for thesliding bars, a catch on the cross-bar, an arm pivotally mounted on thecross-head, and a catch on the arm adapted to be engaged with the catchon the cross-bar and interlock the cross-bar and cross-head to operatethe sliding head with the initial downward movement of the filling-tube,substantially as described.

12. In a filling apparatus for liquids, the combination of a cross-barcarrying a supplyhead and a filling-tube, slidable bars carrying asealinghead through which the filling-tube passes, a cross-head for thesliding bars, a catch on the cross-bar, an arm pivotally mounted on thecross-head, a catch on the arm adapted to be engaged with the catch onthe cross-bar and interlock the cross-bar and cross-head to operate thesliding head with the initial downward movement of the fillingtube,pawls carried by the cross-head, and

fixed racks with which the pawls engage to hold the sealing-head againstretraction from the upward movement of the filling-tube, substantiallyas described.

13. In a filling apparatus for liquids, the combination of a cross-barcarrying a supplyhead and a filling-tube, slidable bars carrying asealing-head through which the filling-tube l passes, a cross-head forthe sliding bars, a catch on the cross-bar, an arm pivotally mounted onthe cross-head, a catch onthe arm adapted to be engaged with the catchon the cross-bar and interlock the cross-bar and cross-head to operatethe sliding head with the initial downward movement of the fillingtube,pawls carried by the cross-head, fixed racks with which the pawls engageto hold the sealing-head against retraction from the upward movement ofthe filling-tube, a lug on each pawl, and a stop on the cross-bar foreach lug, engaging the lug and releasing the pawls from engagement withthe racks, substantially as described.

14. In a filling apparatus for liquids, the combination of a framecarrying a filling-tube and a sealing-head, and having at its extremeupper end a rearwardly-extending car, a fixed plate located rearwardlyof the upper end of the frame and having forwardly-extending ears inline with and receiving the ear at the upper end of the frame, and apivot connecting the ears of the frame and plate and arranged ofl'center in relation to the frame for automatically swinging the lower endof the frame re arwardly and out of line with the filling-hole of thepackage, and when in line al lowing the full weight of the suspendedparts to rest on the package in the act of sealing the package,substantially as described.

15. In a filling apparatus for liquids, the. combination of a framecarrying a sealinghead and a fillingtube, an ear at the extreme upperend of the frame and rearwardly extending, a fixed plate locatedrearwardly of the upper end of the frame and furnishing a support forthe ear of the frame, and a pivot connection between the ear and thefixed plate and located off center in relation to the frame for allowingthe lower end of the frame with the sealing-head and filling-tube toswing automatically rearward out of line with the filling-hole of thepackage, and when in line allowing the full weight of the suspendedparts to rest on the package in the act of sealing the package,substantially as described.

16. In a filling apparatus for liquids, the combination of a framecarrying a filling-tube and a sealing-head, a pivoting-ear at theextreme upper end of and on the rear side of the frame, a pivoting-pinfor the ear, and a fixed plate located rearward of the upper end of theframe and furnishing a support for the pivoting-ear of the frame and thepivotingpin, with the pivoting-pin off center in relation to the framefor suspending the frame at its extreme upper end and fromits rear sideto swing automatically rearward and clear the filling-hole of the package from the fillingtube and sealing-head, and to allow the full weightof the suspended parts to rest on the package in the act of sealingthepackage, substantially as described.

lso

17. In a filling apparatus for liquids, a slidable filling-tube having afree discharge at its lower end and closed by a valve at its upper end,in combination with a venting-valve located on the exterior of andadjacent to the upper end of the filling-tube and automatically closedby the pressure within the filling tube when entered into anddischarging within the package, and automatically opened by pressure ofoutside air for admitting air as the liquid discharges from thefilling-tube during withdrawal from the package, substantially asdescribed.

18. In a filling apparatus for liquids, a reciprocating filling-tubehaving a free discharge at its lower end, a valve controlling theadmission of liquid at the upper end of the filling-tube, and avent-valve located on the exterior of and adjacent to the upper end ofthe filling-tube and below the controllingvalve for admitting liquid andautomatically closed against the admission of air by pressure within thefilling-tube when entered into and discharging within the package, andautomatically opened by pressure of outside airto admit air with theascent of the filling-tube as the liquid discharges during withdrawalfrom the package, substantially as described.

ROYAL C. WHITE. W'itnesses:

OSCAR W. BOND, WALKER BANNING.

